# Sienna Aroma diffuser vs Collabstr

The clearest difference is review sentiment: Collabstr at 60% against Sienna Aroma diffuser's 0%. Collabstr also leads on rating (4.9 vs 1.7) and update cadence (every 9 days vs every 27 months). Sienna Aroma diffuser's advantage is iOS requirement (9.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Collabstr holds the better App Store score, 4.9 against 1.7. That said, the two scores are not equally well evidenced: Collabstr has 562 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 0% of Sienna Aroma diffuser's written reviews are positive against 60% of Collabstr's.

Sienna Aroma diffuser ships an update every 27 months, Collabstr every 9 days. The most recent releases landed on October 3, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Sienna Aroma diffuser | Collabstr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (9 ratings)](https://appshunter.io/ios/app/sienna-aroma-diffuser/id1551919565/reviews) | **[4.9 (562 ratings)](https://appshunter.io/ios/app/collabstr/id6503245507/reviews)** |
| Number of ratings | 9 | **562** |
| Positive reviews | 0.0% of reviews | **59.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 9 days** |
| Monetization | Free | Free |
| Size | 2 MB | 114 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Aroma Experiences LLC](https://appshunter.io/developer/1551919987) | [Collabstr](https://appshunter.io/developer/1732005486) |

## What reviewers say

### Sienna Aroma diffuser

[App page](https://appshunter.io/ios/app/sienna-aroma-diffuser/id1551919565)

Manage multiple aroma diffusers and schedule scent releases. Create custom weekly schedules with adjustable aroma intensity levels for personalized ambiance.

**Highlights:** Control multiple diffusers, Name individual rooms, Set aroma schedules, Create up to 5 weekly schedules, Adjust aroma grade (levels 1-4)

**Features:** macOS Compatibility

**In-app purchases:** none


### Collabstr

[App page](https://appshunter.io/ios/app/collabstr/id6503245507)

This app helps creators monetize their content by facilitating brand deals across various platforms. It simplifies the process of selling, managing, and receiving payments for collaborations.

**Highlights:** Monetize content, Manage brand deals, Get paid for collaborations, Instagram, TikTok, YouTube integration, UGC brand deals

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sienna Aroma diffuser free?

Sienna Aroma diffuser is free to download, with no in-app purchases.

### Is Collabstr free?

Collabstr is free to download, with no in-app purchases.

### Which has better reviews, Sienna Aroma diffuser or Collabstr?

Collabstr is rated higher. Sienna Aroma diffuser averages 1.7 out of 5 from 9 ratings, while Collabstr averages 4.9 from 562 ratings.

### Do Sienna Aroma diffuser or Collabstr have ads?

Neither Sienna Aroma diffuser nor Collabstr shows ads.

### Which is updated more often, Sienna Aroma diffuser or Collabstr?

Sienna Aroma diffuser ships an update every 27 months, and Collabstr every 9 days. Most recently, Sienna Aroma diffuser was updated on October 3, 2026 and Collabstr on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*